TEST PROCEDURES :

Page 5 of 8

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2022.04.20

Test Item

Test Method

Procedure

Requirement

Temperature Coefficient

of Resistance (T.C.R)

JIS-C-5201-1 4.8

IEC-60115-1 4.8

At 25°C / +125°C, 25°C is the reference

temperature

As Spec.

Standard power : 6.25 times rated power

whichever is less for 5 seconds.

High power (2X/4X) and wide terminal type :

5 times rated power whichever is less for 5 seconds.

Insulation Resistance

JIS-C-5201-1 4.6

IEC-60115-1 4.6

Apply 100VDC for 1 minute

≥ 10G Ω

Dielectric Withstanding

Voltage

JIS-C-5201-1 4.7

0805 / 0508 and above applied 500VAC for 1 minute

0201 / 0402 / 0603 applied 300VAC for 1 minute

No short or burned

on the appearance

Core Body Strength

JIS-C-5201-1 4.15

Central part pressurizing force : 10N, 10 seconds

No broken

Solderability

JIS-C-5201-1 4.17

IEC-60115-1 4.17

245 ± 5°C for 3 seconds

> 95% Coverage

No Visual damage

Resistance to

Soldering Heat

JIS-C-5201-1 4.18

IEC-60115-1 4.18

260 ± 5°C for 10 seconds

± (1.0%+0.001 Ω)

No Visual damage

Leaching

JIS-C-5201-1 4.18

IEC-60068-2-58 8.2.1

260 ± 5°C for 30 seconds

> 95% Coverage

No Visual damage

Rapid Change of

Temperature

JIS-C-5201-1 4.19

IEC-60115-1 4.19

-55°C to +155°C, 300 cycles

± (1.0%+0.001 Ω)

No Visual damage

Damp Heat with Load

JIS-C-5201-1 4.24

IEC-60115-1 4.24

40±2°C, 90~95% R.H. RCWV or Max. working

current whichever is less for 1000 hrs with 1.5hrs

"ON" and 0.5hr "OFF"

± (1.0%+0.001 Ω)

Biased Humidity

MIL-STD-202

Method 103

1000 hours, 85°C / 85% RH, 10% of operating

power. Measurement at 24±4 hours after test

conclusion

± (0.5%+0.05 Ω)

Load Life

(Endurance)

JIS-C-5201-1 4.25

IEC-60115-1 4.25.1

70±2°C, RCWV or Max. working voltage

whichever is less for 1000 hours with 1.5hrs

"ON" and 0.5hr "OFF"

± (1.0%+0.001 Ω)

High Temperature

Exposure

JIS-C-5201-1 4.25

IEC-60068-2-2

At 155±5°C for 1000 hours

± (1.0%+0.001 Ω)

Resistance to Solvent

JIS-C-5201-1 4.29

The tested resistor be immersed into isoproplyl

alcohol of 20~25°C for 60 seconds.

Then the resistor is left in the room for 48 hrs.

± (1.0%+0.001 Ω)

No Visual damage

Terminal Strength (SMD)

JIS-C5201-1 4.32

AEC Q200-006

Pressurizing force for 10 seconds

0201 / 0402 / 0603 : 8N;

0805 / 0508 and above : 17.7N

No broken

Bending Strength

JIS-C-5201-1 4.33

IEC-60115-1 4.33

Bending once for 5 seconds:

D: 0201 / 0402 / 0603 / 0805 = 5mm

1206 / 1210 / 0508 / 0612 = 3mm

2010 / 2512 / 1020 / 1225 = 2mm

± (1.0%+0.001 Ω)

No Visual damage

Short Time Overload

JIS-C-5201-1 4.13

IEC-60115-1 4.13

± (1.0%+0.001 Ω)

SURFACE MOUNT METAL FILM RESISTORS

LRT Series: Low Resistance, Low T.C.R.

RoHS